Connection For The Control Of A Load - SMA SUNNY BOY series Technical Description

SMA Solar Technology AG
3.2.2 Connection for the Control of a Load
In most operating modes, a load is switched on and off based on parameters and measured values
of the inverter. For these operating modes, connect the multifunction relay so that it is active in position
1-2 (operation). It controls a contactor (K1), which switches the operating current for the load.
Between the multifunction relay and the loads, only use contactors which meet the connection
requirements of the multifunction relay (see Section 3.4 "Technical Data of the Multifunction Relay"
(page 17)). You will find some examples in the following table.
Manufacturer
ABB
Hager
Siemens
Siemens
Technical Description
L
miniature
circuit-breaker
(1 A)
B
F
K1
N
Model
TAL 9 to 40 series
ES 2xx
Insta contactor 5TT5 8xx-0
Insta contactor 5TT5 80x-2
Multifunction Relay
Coil
230 V
230 V
230 V
24 V
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